Debian Bug report logs - #785787
python-distlib == 0.2.0-1 breaks python-pip 1.5.6

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Rogério Brito <rbrito@ime.usp.br>

To: submit@bugs.debian.org

Subject: [REGRESSION] python-distlib == 0.2.0-1 breaks virtualenv and tox

Date: Wed, 20 May 2015 05:20:38 -0300

Package: python-distlib
Version: 0.2.0-1
Severity: normal

Hi.

After upgrading python-distlib to 0.2.0-1 (from 0.1.9-1), I am now unable to
create virtual environments with virtualenv. More generally, these failures
with virtualenv are breaking tests with tox (which uses virtualenvs as one
of its steps).

One example:

,----[ virtualenv --verbose foo ]
| Running virtualenv with interpreter /usr/bin/python2
| Creating foo/lib/python2.7
| Symlinking Python bootstrap modules
|   Symlinking foo/lib/python2.7/lib-dynload
|   Symlinking foo/lib/python2.7/os.py
|   Ignoring built-in bootstrap module: posix
|   Symlinking foo/lib/python2.7/posixpath.py
|   Cannot import bootstrap module: nt
|   Symlinking foo/lib/python2.7/ntpath.py
|   Symlinking foo/lib/python2.7/genericpath.py
|   Symlinking foo/lib/python2.7/fnmatch.py
|   Symlinking foo/lib/python2.7/locale.py
|   Symlinking foo/lib/python2.7/encodings
|   Symlinking foo/lib/python2.7/codecs.py
|   Symlinking foo/lib/python2.7/stat.py
|   Symlinking foo/lib/python2.7/UserDict.py
|   Symlinking foo/lib/python2.7/copy_reg.py
|   Symlinking foo/lib/python2.7/types.py
|   Symlinking foo/lib/python2.7/re.py
|   Symlinking foo/lib/python2.7/sre.py
|   Symlinking foo/lib/python2.7/sre_parse.py
|   Symlinking foo/lib/python2.7/sre_constants.py
|   Symlinking foo/lib/python2.7/sre_compile.py
|   Ignoring built-in bootstrap module: zlib
|   Symlinking foo/lib/python2.7/warnings.py
|   Symlinking foo/lib/python2.7/linecache.py
|   Symlinking foo/lib/python2.7/_abcoll.py
|   Symlinking foo/lib/python2.7/abc.py
|   Symlinking foo/lib/python2.7/_weakrefset.py
| Creating foo/lib/python2.7/site-packages
| Writing foo/lib/python2.7/site.py
| Writing foo/lib/python2.7/orig-prefix.txt
| Writing foo/lib/python2.7/no-global-site-packages.txt
| Creating parent directories for foo/include
| Symlinking foo/include/python2.7
| Creating foo/bin
| New python executable in foo/bin/python2
| Changed mode of foo/bin/python2 to 0755
| Also creating executable in foo/bin/python
| Changed mode of foo/bin/python to 0755
| Testing executable with foo/bin/python2 -c "import sys;out=sys.stdout;getattr(out, "buffer", out).write(sys.prefix.encode("utf-8"))"
| Got sys.prefix result: u'/tmp/foo'
| Symlinking foo/local/lib
| Symlinking foo/local/bin
| Symlinking foo/local/include
| Creating foo/lib/python2.7/distutils
| Writing foo/lib/python2.7/distutils/__init__.py
| Writing foo/lib/python2.7/distutils/distutils.cfg
| Installing setuptools, pip...
|   Ignoring indexes: https://pypi.python.org/simple/
|   Downloading/unpacking setuptools
|   Cleaning up...
|   Exception:
|   Traceback (most recent call last):
|     File "/usr/share/python-wheels/pip-1.5.6-py2.py3-none-any.whl/pip/basecommand.py", line 122, in main
|       status = self.run(options, args)
|     File "/usr/share/python-wheels/pip-1.5.6-py2.py3-none-any.whl/pip/commands/install.py", line 290, in run
|       requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
|     File "/usr/share/python-wheels/pip-1.5.6-py2.py3-none-any.whl/pip/req.py", line 1178, in prepare_files
|       url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
|     File "/usr/share/python-wheels/pip-1.5.6-py2.py3-none-any.whl/pip/index.py", line 292, in find_requirement
|       elif is_prerelease(version) and not (self.allow_all_prereleases or req.prereleases):
|     File "/usr/share/python-wheels/pip-1.5.6-py2.py3-none-any.whl/pip/util.py", line 739, in is_prerelease
|       return any([any([y in set(["a", "b", "c", "rc", "dev"]) for y in x]) for x in parsed])
|   TypeError: 'int' object is not iterable
|   
|   Storing debug log for failure in /home/rbrito/.pip/pip.log
|   Complete output from command /tmp/foo/bin/python2 -c "import sys, pip; sys...d\"] + sys.argv[1:]))" setuptools pip:
|   Ignoring indexes: https://pypi.python.org/simple/
| Downloading/unpacking setuptools
| Cleaning up...
| Exception:
| Traceback (most recent call last):
|   File "/usr/share/python-wheels/pip-1.5.6-py2.py3-none-any.whl/pip/basecommand.py", line 122, in main
|     status = self.run(options, args)
|   File "/usr/share/python-wheels/pip-1.5.6-py2.py3-none-any.whl/pip/commands/install.py", line 290, in run
|     requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
|   File "/usr/share/python-wheels/pip-1.5.6-py2.py3-none-any.whl/pip/req.py", line 1178, in prepare_files
|     url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
|   File "/usr/share/python-wheels/pip-1.5.6-py2.py3-none-any.whl/pip/index.py", line 292, in find_requirement
|     elif is_prerelease(version) and not (self.allow_all_prereleases or req.prereleases):
|   File "/usr/share/python-wheels/pip-1.5.6-py2.py3-none-any.whl/pip/util.py", line 739, in is_prerelease
|     return any([any([y in set(["a", "b", "c", "rc", "dev"]) for y in x]) for x in parsed])
| TypeError: 'int' object is not iterable
| 
| Storing debug log for failure in /home/rbrito/.pip/pip.log
| ----------------------------------------
| ...Installing setuptools, pip...done.
| Traceback (most recent call last):
|   File "/usr/lib/python3/dist-packages/virtualenv.py", line 2378, in <module>
|     main()
|   File "/usr/lib/python3/dist-packages/virtualenv.py", line 830, in main
|     symlink=options.symlink)
|   File "/usr/lib/python3/dist-packages/virtualenv.py", line 1032, in create_environment
|     install_wheel(to_install, py_executable, search_dirs)
|   File "/usr/lib/python3/dist-packages/virtualenv.py", line 975, in install_wheel
|     'PIP_NO_INDEX': '1'
|   File "/usr/lib/python3/dist-packages/virtualenv.py", line 917, in call_subprocess
|     % (cmd_desc, proc.returncode))
| OSError: Command /tmp/foo/bin/python2 -c "import sys, pip; sys...d\"] + sys.argv[1:]))" setuptools pip failed with error code 2
`----

Downgrading python-distlib and python-distlib-whl back to 0.1.9-1 fixes the
problems that I see. Given that unrelated packages are broken, I think that
this bug should have an RC severity.

OTOH, I am not really sure which package is the *real* culprit here (if
distlib or if the other packages), which is why I am not setting the
severity to be higher than normal.

Feel free to reassign this bug to other packages and/or set its severity as
appropriate.

Also, if more information is needed, please let me know, but the bug should
be easily reproducible, I think.


Thanks,

Rogério Brito.


-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (250, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.0.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf-8, LC_CTYPE=pt_BR.utf-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages python-distlib depends on:
pn  python:any  <none>

python-distlib recommends no packages.

python-distlib suggests no packages.

-- no debconf information

-- 
Rogério Brito : rbrito@{ime.usp.br,gmail.com} : GPG key 4096R/BCFCAAAA
http://cynic.cc/blog/ : github.com/rbrito : profiles.google.com/rbrito
DebianQA: http://qa.debian.org/developer.php?login=rbrito%40ime.usp.br

Message #10 received at 785787@bugs.debian.org (full text, mbox, reply):

From: Archan Paul <paularchan@gmail.com>

To: 785787@bugs.debian.org

Subject: [REGRESSION] python-distlib == 0.2.0-1 breaks virtualenv and tox

Date: Thu, 21 May 2015 16:57:08 +0530

[Message part 1 (text/plain, inline)]

The problem is not in distlib. The problem is in pip. Steps I followed to
fix the issue :

1) Uninstalled python3-pip (1.5.6-5 debian/sid) package.
2) Used easy_install to install latest pip (6.1.1).
3) Used latest pip to install virtualenv (12.1.1).

Deb/sid packages may need update/fix otherwise pip & virtualenv can't be
used effectively.

- Archan

[Message part 2 (text/html, inline)]

Message #15 received at 785787@bugs.debian.org (full text, mbox, reply):

From: "Felix C. Stegerman" <flx@obfusk.net>

To: 786580@bugs.debian.org

Cc: 786440@bugs.debian.org, 785787@bugs.debian.org

Subject: pip and distlib mismatch breaks pip and virtualenv

Date: Sun, 24 May 2015 21:34:38 +0200

[Message part 1 (text/plain, inline)]

Hi,

I've looked at what's going on, and the problem seems to be caused by
the fact that distlib 0.1.9 uses PEP426 and 0.2.0 uses PEP440; the
latter has an extra "epoch" field.

Because pip.util (in the version included with Debian) expects the
output not to have this epoch field, it breaks.

Downgrading python-distlib and python-distlib-whl to the version in
testing (0.1.9) makes pip and virtualenv work again.

Alternatively, updating to the latest pip (which is not yet available
in Debian) would probably fix this as well.

The third option would be to temporarily patch the current pip to
support both versions of distlib.  I've attached a patch (for
pip/util.py) that seems to work.

- Felix

[pip_util.diff (text/x-diff, attachment)]

[signature.asc (application/pgp-signature, inline)]

Message #20 received at 785787@bugs.debian.org (full text, mbox, reply):

From: Barry Warsaw <barry@debian.org>

To: 785787@bugs.debian.org

Date: Tue, 26 May 2015 16:49:10 -0400

[Message part 1 (text/plain, inline)]

@Felix: Thanks for the diagnosis and patch.  It works for me and I've double
checked the patch with dstufft (upstream pip maintainer).

[Message part 2 (application/pgp-signature, inline)]

Message #33 received at 785787-close@bugs.debian.org (full text, mbox, reply):

From: Barry Warsaw <barry@debian.org>

To: 785787-close@bugs.debian.org

Subject: Bug#785787: fixed in python-pip 1.5.6-6

Date: Wed, 27 May 2015 16:27:24 +0000

Source: python-pip
Source-Version: 1.5.6-6

We believe that the bug you reported is fixed in the latest version of
python-pip, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 785787@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Barry Warsaw <barry@debian.org> (supplier of updated python-pip package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Format: 1.8
Date: Wed, 27 May 2015 10:11:32 -0400
Source: python-pip
Binary: python-pip python3-pip python-pip-whl
Architecture: source all
Version: 1.5.6-6
Distribution: unstable
Urgency: medium
Maintainer: Debian Python Modules Team <python-modules-team@lists.alioth.debian.org>
Changed-By: Barry Warsaw <barry@debian.org>
Description:
 python-pip - alternative Python package installer
 python-pip-whl - alternative Python package installer
 python3-pip - alternative Python package installer - Python 3 version of the pa
Closes: 785787
Changes:
 python-pip (1.5.6-6) unstable; urgency=medium
 .
   [ Felix C. Stegerman ]
   * d/patches/0006-bug-785787.patch: Allow pip 1.5.6 to handle the PEP 440
     "epoch" field.  (Closes: #785787)
 .
   [ Barry Warsaw ]
   * d/control:
     - Update Vcs-* header for conversion to git-dpm.
     - Add myself to Uploaders.
   * d/watch: Update to pypi.debian.net redirector.
   * wrap-and-sort
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